Bottle closure



Patented Oct,v 4,1927.

UNITED STATES lrna'rnala'r oFFlea.

JOHN A. PEASE, F S'YRACUSE, NEW YORK,

BOTTLE CLOS'UBE.

Application mea February sa, 1927. serial No. 170,889.

This invention relates to improvements in bottle closures, designed particularly for use in connection with milk, cream, and like containers, and has for its object to provide a unita circular fibrous closure having a de? presse snugly fits the recess of the bottle mouth, the

said body being formed with an integral which the peripheral portion of the central disc is folded and molded for regulating and vmaintainin the depth Lof said sealing margin, the'sai ing a. suitable metal wire of sufficient iexibilityto enable the disc toV be 4firmly seated by 'the capping mechanism in case of slight 1nequalities of the said recess. y v

I attain these ob'ects by the means set forth in the detaile description-which follows, and as illustrated by the accompanying-drawing, in which- Fi re 1 1s a central vertical section of the neck and mouth of a common ymilk bottle, to which my improved closure is applied. Fig. 2 is at plan view of the closure. Fig. 3 is a centra vertical cross-section, showing osure as it comes from the molding mach' e'; also showing a/reinforcing ring of square cross-section, Fig. 4 is a similar section, showmg the ring made from round wire. Fig. 5-is a plan view ofthe ring shown in Fig. 3. And Fig.*6 is asimilar ,v1ew of thJ1 ring shown in Fig. 4, the ring being s '13. r

'PIn thedrawing, 2 'represents the neck of an ordinary milk bottle, and Y2 isv the depressed -mouth, which is surrounded by a flaringv bead 3. Thebottom of the recess 2 comprises an annular. ledge4 upon which the central 'portion ,of the closure, as 5, 1s seated.

The closure 5 preferably consists of a4 relatively large circular fibrous body of relatively thin gage, which is preferably of such iexibility as to enable thebody to be molded and flexed during the manufacture, as well as durin the application-ofthe closure of the bott e. The closure 5 .consists of a depressed central disc-shaped portion, whicgh 'central disc-shaped portion that ring or core\preferably compris" is arranged to snuglly fit the bottom portiony of the recess 2', t e said disc being surrounded by an integral rolled convex apron -5'which overlies the convex bead 3, when the closure is applied 'to the bottle mouth.

In'order to provide for suitably molding the closure, the gage of the fibrous stock must be relatively thin.- This thin stock, it has jbeen found, is incapable of eiectingthe sat.

isfactory sealing at the point where the periphery of the central disc engages the walls of the recess 2', and requires ,to be reinforced and thickened inthe vicinity of said periphery, in order that the closure may be self-retalning, and at the same time resist leakage and accidentalejectment during the handling of the bottle. i

Heretofore, closures of this class have been provided with plain discs of similar but usually stiffer ben-the said discs usuallybelng mounted upon the central'portion 5 for reinforcing the said portion generall and at the same ltime thickening and sti ening the peripheral margin, at 5, of` saidfcentral portion. The use of the said reinforcing discs greatly increases the. amunt of brous stock, and entails considerable extra expense,

s and besides the sald discs cause moreor lessl trouble during the `manufacture of the closures. In the present case, it is pro osed to eliminate the aforesaid reinforcing isc, and` to substitute therefor an annular core or' ring, as 6, which is mounted concentrically upon the disc 5 ,after which vthe peripheral portion of the discl 5" is folded inwardly upon the said ring, and is then folded outwardly for providing the' convex apron 5, as shown in' Flgs. l, 2 and-3. By the vuse of the A ring 6, the peripheral margin 5c of the disc 5 is given the;v proper depth to effect the' positive sealing of the joint between the portion 5 and the walls ofthe recess 2. The ring 6 is preferably of square cross-section (see Figs. 1 and 3), which tends to form the periphery 5 of the disc 5 at right angles to the planeof said Idisc, and enab ethe said periphery to snugly fit the recess 2.

lies in the eheapness of its manufacture, and being preferably composed of metal wire, which is usually hard and smooth, the id a' ring is not liable to becomeibattered, frayed,

particular advantage of the ring 6 soiled or distorted, by handling. In practice board discs formerly employed for reny forcing closures of this type. By substithan thepaper discs, not only improve the non-metallic materialsof suita l and that' other changes-may be made --within vthe scope defined by. the` appended claims.

recess 2', the. rings exert s tuting the core 6 for the common fibrous disc, the reinforced margin 5 is rendered so rigid as to prevent distortion of the clo` sure after it leavesv the molding machine. The use of the rings 6 eliminates' one set of-vdies heretofore employed for stamping out the discs, and the rings may be readily' and cheaply made by modern wire-working machines without any vwaste. Furthermore, the stamping ofthe old `discs from sheets or fibre always results in a great waste of the stock, which greatly increases thea-cost of producing the said discs. The older clo- `sures are manufactured by automatic machines, which are vequipped with separate magazines for supplyingl the larger discs comprising the jmain body 'of the closures, as

A well as the reinforcing dlscs, and these relatively thin fibrous discs, generally become so vclosely-packed inthe .magazinesthat it is extremely difiicult to' feed single discs` from the bottom of the stacks, and the fibrous discs being more tenacious than the. smooth metal of the wire rings tend to cling to each other and interferywith, and `slow down the feedin as well as the .output ofthe machines. T e rings 6 being more rigid Having thus described my invention, what bodyhaving adepre central portion formed for seatin within the recess of the bottle mouth and 'avin an annular apron formed to overlie the f ad of the mouth;

cient radial-l made of said body being folded upon itself to form a continuous annular ledge which overlies the sa1d depressed portion in spaced relation thereto, and a ring of substantially uniform cross-section ythroughout disposed in the space between the depressed portion and the ledge and being held in fixed position on said depressed portion by the ledge, the' marginal wall defining the depressed portlon be1ng at right angles .to the latter and the periphery of the ring being also at right v angles to, the depressed portion so as to reinfbrce and maintain said marginal wallof the depressed portion at right angles to the,

depressed vportlon.

2. A bottle closure composed of a fibrous body vhaving a depressed central portion .formed for seatingwithin the recess of the bottle mouth and having an annular apron formed to overlie the beadv of the mouth, saidbody ybeing folded vupon itself to form a continuous annular ledge which overlies thesaid depressed portion in spaced relation thereto, and a ring seated on the depressed .portion and held permanently thereon in a fixed position by -the ledge so that the body and ring constitutega unit, said ring engaging the marginal Wall that ldefines the depressed portion throughout :substantially the entire circumference thereof so as' to reinforce same.

3. A bottle closure composed/of a fibrous?) body 'having a central depressed .portion to seat within the recess of the bottle'mouth s'ol and having lan annular apron -formed to overlie the bead-lof the bottle moth, anda ring seated on the depressed'portion and against the'marginal wall defining the depression so vas to reinforce the marginal "wall, said body being formed-with an integral continuous `part that overlies" and permanently holds the ring. ontoethe de- .i

.pressed portion so that the .body and. ring constitute a unit.'

In^test1mony whereof I ailic my signature.;- JOHN A,. 

